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Thank you for purchasing the GTO Battery Heater. Be sure to read the
directions carefully and completely before permanently mounting the
battery heater.
©2005 GTO - Gates That Open, LLC
rev - 02-10-10
GTO BH-1 Battery Heater
Installation Manual
The GTO Battery heater is designed to maintain the batteries in the GTO control box at a higher
temperature when the system is installed in a cold climate. The heater is easy to install and wire, and
controlled by a built in thermostat that activates the heater at temperatures below 40°F (4°C). One or
two heaters can be used depending on the number of batteries installed in the control box.
The heaters are designed to be used with the Mighty Mule 500, Mighty Mule 502, PRO-SW3000,
PRO-SW4000, PRO-SL-1000 and PRO-SL2000 gate operators.
Power for the heaters is supplied by the incoming 18VAC GTO RB570F transformer up to 500 feet
from an AC power source. Single battery systems more than 500 feet and dual battery systems more
than 300 feet from the AC power source can be powered by a separate transformer. The heaters will
not work on solar powered applications.
Limited One Year Warranty
GTO, Inc. gate opener accessories are warranted by the manufacturer against defects in workmanship for a period of one (1) year from the date of purchase, provided
recommended installation procedures have been followed.
In the case of product failure due to defective material or manufacturer workmanship within the one (1) year warranty period, the accessory will be repaired or replaced (at
the manufacturer’s option) at no charge to the customer, if returned freight prepaid to GTO - Gates That Open, LLC • 3121 Hartseld Rd. • Tallahassee, FL 32303.
IMPORTANT: Call 850/575-4144 or fax 850/575-8950 for a Return Goods Authorization (RGA) number before returning goods to factory. Products received at the factory
without an RGA will not be accepted. Replacement or repaired parts are covered by this warranty for the remainder of the one (1) year warranty period. GTO will pay the
shipping charges for return to the owner of items repaired.
The manufacturer will not be responsible for any charges or damages incurred in the removal of the defective parts for repair, or for the reinstallation of those parts after
repair. This warranty shall be considered void if damage to the product(s) was due to improper installation or use, connection to an improper power source, tampering, or
if damage was caused by lightning, wind, re, ood, insects, or other natural agent.
After the one (1) year warranty period, GTO or one of its authorized service centers will make any necessary repairs for a nominal fee. Call GTO at 850/575-4144 for
more information. This warranty gives you specic legal rights, and you may also have other rights which may vary from state to state. This warranty is in lieu of all other
warranties, expressed or implied. NOTE: Verication of the warranty period requires copies of receipts or other proof of purchase. Please retain those records.
Heater Installation:
1. Install the heater(s) with the green side against the side of the battery closest to the controller board. The white
foam insulation layer should face away from the battery. The heater should be pressed between the control box
divider and the battery surface as shown above. Make sure the heater is pressed as far down in the control box as
possible.
2. Connect the yellow wire pair in parallel with the 18VAC connection from the GTO transformer in the rst two
terminal positions.
3. If using two heaters, both should be connected as above. This will result in three wires in each terminal position
4. Tape the thermostat (metal switch in clear plastic sleeve) to the top of the battery as shown with double sided tape
supplied in kit
5. Make sure heater wires do not short to other circuits or become pinched by hardware in the control box.
If you have any questions or concerns, please contact our Technical Service Department at 1-800-543-1236 or 850-575-4144.
GTO - Gates That Open, LLC • 3121 Hartseld Road • Tallahassee, Florida 32303
Telephone (850) 575-0176 • Fax (850) 575-8912 • website www.gtoinc.com
Battery Heater
Battery Heater
Thermostat
Thermostat
Battery Heater Wires
Battery Heater Wires in Terminals
The contents of all material available on this installation manual are copyrighted by Gates That Open, LLC (“GTO”), unless otherwise indicated. All rights are reserved by GTO, and content
may not be reproduced, downloaded, disseminated, published, or transferred in any form or by any means, except with the prior, written permission of GTO. Any reprinting of GTO publica-
tions is by permission only. Copyright infringement is a violation of federal law.
GTO®, GTO/PRO®, Mighty Mule® are registered trademarks of GTO - Gates That Open, LLC. GTO Access Systems™ is a trademark of GTO - Gates That Open, LLC and are the exclusive
property of GTO - Gates That Open, LLC (“GTO”). All rights are reserved by GTO, and these marks may not be used, in any for without the prior, written permission of GTO.
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